Locomotive-superheater.



F. A. DELANO.

LOCOMOTIVE SUPERHEATER. APPLICATKON men JUNE 5, was

Patented Eek-12, 1918.

2 SHEETSSHEET I- m w E W. m

the partition wall 17.

emmmun "Wm mm illit l flfil" Application lied some 5, 19155.

ful Improvements in Locomotive-Super hooters, of which the following is a specification.

This invention relates to improvements in locomotive superheater. The object of this invention is to -Jrovide an improved form of superheater W.1lCl1 will dispense with the plurality of pipe connections and at the same time afi'ord a larger amount of superheated surface while simplifying the cleaning of the apparatus.

Hitherto, in locomotive superheater con; struction, it has been the practice to provide comparatively small suporlieater pipes doubled back and forth in their respective fines and extending only partially through the same. This construction complicates cleaning of the fines and provides a. plurslityoif threaded or headed connections which makes for greater possibility of leakage under high pressure. My device aims to eliminate these objections, as for as possible, by simplifying the construction and arrangement, and at the some time providin an equal or greater superiieating surface. tlier objects will be made apparent and setforth in following specification and accompanying dra ings, in which; Y

Figure 1 is a longitudinal. vertical section through a boiler showing my improved form oi? superheater, located therein;

Fig. is a transverse section along the line 2-2 of Fig. l; i

Fig. 3 is a similar section along the line s e of Fi 1.

Like numerals refer to like elements throughout the drawings.

10 designates generally comotive having rear end, the boiler 12 and smoke box 13. Fire tubes or fines 14 lead from-the fire box 11 to the smoke box 13, through the boiler 12.. The boiler 12 is provided with a steam dome 13? at its upper end, in which terniL notes the intake end 15 ore duct 16, which leads to and is in communication with superheater manifold 17, comprising; at its rear end the Wet steam chamber 17" and at its forward end the superliea ted steam chamber 17", these chambers being scpareted by The intake 15 is the body of o. lo-

the usual fire box it at its s ieclficsttoii of Letters .aeiiteiilllelp. Mild.

fieriel lilo. 'msoe.

orovmxd Willi well known valve construction on a d .nig stem. lli" sctueted "inch leads on operatin to lesd to the engine ca by bell craiil" l8. rod l9, adopted {not shortn).

Extending between tlielire box ll. and smoke box 13, are ss'perlieater times 20 relatively larger than the lire tuoes of iiues lgl and located c. this constructioiigin two rows, as shown in Fig. l

Depending from and secured. to the menifold .17, in communication with the wet steam chamber lZ is series of elbows 21., termineting io the flanged ends 21, as shown in Fig. l. bwlil rly, elbowmcmbers 22 depend from and are in communication-with till the superheated steam. chamber 17 of msnifold 17. These elbow members 22 depend below the members 21. and are similarly pro vided with flanged ends Leading rearwardly through heater tlues 20, are the super-heater tubes 23 located. one in each of said lines and normally spaced therefrom by the spacing members 9% which are constructed to permit circulathe upper series of super lion of the heating gases around the tubes The forward. ends of tubes 23 are pro vided with the ball portion 23 secured to the flanged ends ill. of the respective elbow members 21, andv adapted to be retained in non leaking position with respect theretmby. the flanges 23"., and coscting bolts 24%. This is a well known form of ball and socket joint.

and needs no 43111 tubes 23 project into the secured by s welded oer description here. The

fire box 11 and are sleeve 30ml; or similar means stpoints 23 to a curved or bent el bow 25.

By spacing the corresponding lines 20 oil the upper and lower set 1; suliicierit distance apart, the bent elbow which may be termed separotely if: so desired,.moy be formed of comparatively gentle-curve in contradistinction to the sliort bend required in the ordinary form of superheater construction where small. at single flue. "Where located in the fire box 11, as shown, it advantageous to protect the some from the direct action of the tire the some with one or more layers proof material such as asbestos, which will prevent the oxidizing of the motel superits home. At the forward end of the lower lieater tubes when in contact with the portion oftobcs 23 they ere secured by tubes are doubled in; the bent elbow 25 is flame and it cost 26, of fire-' Mill ball connection to flanged ends 22 and elbow members 22, similarly to the connections at flanged ends 21* of the elbow memberg 21. Flanged outlet apertures 17 are provided in the manifold 17 and superheated steam ducts 27 may be secured thereto to lead therefrom to the steam chest. It will be apparent that steam may be admitted to the wet steam chamber 17 through the intake duct 16, passage therethrough being regulated by the valve in intake 1.5. From the wet steam chamber 17 it will pass through the superheater tubes '23 and will be returned to superheated steam chamber 17 of manifold 17; from hence it will be supplied to the steam chests and respective cylinders.

While I have described and shown my invention with more or less particularityfI do not desire to be restricted to the form shown and described, beyond the scope of the appended claims.

What I claim is 1. In a locomotive, a fire box, a boiler, a smoke box, tlues in said boiler leading from said tire box to said smoke box, a manifold comprising a wet steam chamber and a superheated steam chamber, a series of cl; bows depending from said wet steam chainher, a second series of elbows depending tron. said superheated steam chamber, superheating tubes each detachabl connected to an elbow of said first-namec series and leading from one of said flues to said fire box, each of said superheating fines returning from said fire box through another of said llucs and being detachably connected an elbow of said second-named series, and .lre proof material for covering said superlieating tubesin said fire box.

52-. In a locomotive, a boiler having a plunected to a duct member of said first-named series and leading through one of said lines to the other end of said boiler, each of said super-heating tubes returning from the other end of said boiler through another of said tines and being detach-ably connected to an elbow of said second-named series.

3. In a locomotive, a tire box, a boiler and a smoke box, tlues in said boiler leading from aid fire box to said smoke box, a manifold comprising a wet steam chamber and a superheated steam chamber, a series of elbows depending from said wet steam chamber, a second series of elbows depending from said superheated steam chamber, and superheating tubes, eachdetachably connected to an elbow of said first named series and leading through one of said tines to said fire box, each of said supcrheating tubes returning from said fire box through 1 another of said lines and being detachably connected to an elbow of said second named series, said tubes being formed to permit withdrawal thereof from said tiues toward said fire box when detached from said elbows.

In testimony whereof, I have subscribed my name.

FREDERIO A. DELI-1N0.

Witnesses:

Hsxar A. PARKS, Eor'rnn M. ANDERSON; 

